Webster's Revised Unabridged Dictionary · 1913

Sullen

Sullen , adjective

[Old English solein, solain, lonely, sullen; through Old French from (assumed) Late Latin solanus solitary, from Latin solus alone. See Sole, a.]

1.
Lonely; solitary; desolate. [Obsolete] — Wyclif (Job iii. 14)
2.
Gloomy; dismal; foreboding. — Milton
Solemn hymns so sullen dirges change. — Shakespeare
3.
Mischievous; malignant; unpropitious.
Such sullen planets at my birth did shine. — Dryden
4.
Gloomily angry and silent; cross; sour; affected with ill humor; morose.
And sullen I forsook the imperfect feast. — Prior
5.
Obstinate; intractable.
Things are as sullen as we are. — Tillotson
6.
Heavy; dull; sluggish.
The larger stream was placid, and even sullen, in its course. — Sir W. Scott
No cheerful breeze this sullen region knows; The dreaded east is all the wind that blows. — Pope

Sullen , noun

1.
One who is solitary, or lives alone; a hermit. [Obsolete] — Piers Plowman
2.
Sullen feelings or manners; sulks; moroseness; as, to have the sullens. [Obsolete] — Shakespeare

Sullen , transitive verb

To make sullen or sluggish. [Obsolete]
Sullens the whole body with... laziness. — Feltham